#include <bits/stdc++.h>

using namespace std;

#define     mp              make_pair
#define     fs              first
#define     sc              second
#define     pob             pop_back
#define     pub             push_back
#define     eps             1E-7
#define     sz(a)           a.size()
#define     count_one       __builtin_popcount;
#define     count_onell     __builtin_popcountll;
#define     fastIO          ios_base::sync_with_stdio(false)
#define     PI              (acos(-1.0))
#define     linf            (1LL<<62)//>4e18
#define     inf             (0x7f7f7f7f)//>2e9

#ifndef ONLINE_JUDGE
ifstream fin("rmq.in");
ofstream fout("rmq.out");
#endif

const int MAXN = 100010;
const int LOGN = 20;

int n, m;
int rmq[MAXN][LOGN];

void read() {
	fin >> n >> m;
	for(int i = 0; i < n; ++i) {
        fin >> rmq[i][0];
	}

	for(int j = 1; (1 << j) <= n; ++j) {
        for(int i = 0; i + (1 << j) - 1 < n; ++i) {
            rmq[i][j] = min(rmq[i][j - 1], rmq[i + (1 << (j - 1))][j - 1]);
        }
	}

    int a, b, k;
    while(m--) {
        fin >> a >> b;
        a--; b--;
        k = int(log2(b - a + 1));
        fout << min(rmq[a][k], rmq[b - (1 << k) + 1][k]) << "\n";
    }
}

int main() {
	read();

    return 0;
}